Polyamide resin A-class fire-proof material and preparation method thereof
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A technology of polyamide resin and fireproof material, applied in the field of organic polymer materials
Inactive Publication Date: 2015-05-13
SHENDUN FIREPROOF TECH
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[0003] Polyamide resin material is widely used, but its fire resistance is only B1...
Method used
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Embodiment 1
[0034] Embodiment 1: Preparation of flame retardant polyether
[0035] A cylindrical airtight reaction vessel with a height of 2 meters, an arc generator is arranged in the reaction vessel, and a microwave generator is arranged at a height of 1.5m on the wall of the reactor. Before the reaction starts, the container is filled with nitrogen and carbon dioxide (volume ratio 100:1.5) after vacuuming, so that the pressure in the container is 75MPa.
[0036] The catalyst is a mixture of 0.6 parts by mass of methanol, 0.5 parts by mass of silicone oil, 0.3 parts by mass of sodium silicate, and 0.1 parts by mass of sodium bicarbonate.
[0037] Rare earth bromide (purchased from Yixing Xinweilicheng Rare Earth Co., Ltd., 2000 mesh) with mass parts of 1, 0.5, 1.5, and 1.5, butylene oxide, catalyst, and polytetrafluoroethylene at a temperature of 560 ° C and a pressure It is obtained after 3 hours of reaction under the reaction conditions of 75MPa, voltage of 15,000 volts, and microwav...
Embodiment 2
[0038] Embodiment 2: Preparation of flame retardant polyether
[0039] Equipment and pressure control are the same as in Example 1.
[0040] The catalyst is a mixture of 0.7 parts by mass of methanol, 0.6 parts by mass of silicone oil, 0.5 parts by mass of sodium silicate, and 0.2 parts by mass of sodium bicarbonate.
[0041] The mass parts of cerium bromide, butylene oxide, catalyst, and polytetrafluoroethylene are 1, 0.5, 2.0, and 1.5 respectively. Obtained after 3 hours of reaction.
Embodiment 3
[0042] Embodiment 3: Preparation of flame retardant polyether
[0043] Equipment and pressure control are the same as in Example 1.
[0044]Catalyst is with embodiment 2. The mass parts are respectively 1, 0.5, 2.0, 1.5 lanthanum bromide (purchased from Yixing Xinwei Licheng Rare Earth Co., Ltd.), butylene oxide, catalyst, and polytetrafluoroethylene at a temperature of 550 ° C and a pressure of 75 MPa. Under the reaction conditions of a voltage of 15,000 volts and a microwave frequency of 100 GHz, it was obtained after 3 hours of reaction.
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Abstract
The invention provides a polyamide resin A-class fire-proof material. The polyamide resin A-class fire-proof material is prepared from the following components in parts by weight: 70-100 parts of polyamide PA, 10-15 parts of a char forming agent, 10-15 parts of sodium borate, 0.01-0.5 part of a stabilizing agent, 10-30 parts of hexabromocyclododecane, 4-10 parts of a solubilizer, zinc borate, color masterbatch, hydroxide, antimony trioxide, flame resistant polyether, a coupling agent, inflatable graphite, wood powder, titanium dioxide, cane sugar and molybdenum trioxide. The home-made flame resistant polyether adopted by the polyamide resin A-class fire-proof material disclosed by the invention is prepared from bromide, the polyether and a catalyst under microwave environment through a reaction for 3 hours under the environment of high temperature, high air pressure and high voltage. At this time, Br ions are in a half-free state, a large number of the Br ions are released at a high temperature of 450-750 DEG C to catch pyrolysis active groups H<+> and OH<-> so as to generate stable BrH, the reaction always lasts until the decomposition of a PA high polymer is completed, and the concentration of inflammable gases is effectively reduced, so that the purpose of restraining the generation of naked fire is achieved.
Description
technical field [0001] The invention belongs to the field of organic polymer materials, and in particular relates to a polyamide material containing halogenated hydrocarbons and a preparation method thereof. Background technique [0002] Polyamide resin is a chemical raw material with excellent performance and wide application. It has toughness, flexibility, strong binding force, wear resistance, oil resistance, water resistance, and enzyme resistance, but it absorbs large water. PA has good comprehensive properties, including mechanical properties, resistance Heat resistance, wear resistance, chemical resistance and self-lubricating properties, low friction coefficient, certain flame retardancy, easy processing, suitable for filling with glass fiber and other fillers to enhance modification, widely used in ink, Hot melt adhesive coating industry, adhesives and other fields. Because polyamide has non-toxic, light weight, excellent mechanical strength, wear resistance and go...
Claims
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Application Information
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